今日天文图片
猎户座和奔跑的人
(原标题: Orion and the Running Man)
2025-11-13
浏览次数: 599
很少有宇宙景观能像猎户座大星云那样激发想象力。在这张清晰的彩色望远镜图像中，最近的大型恒星形成区域以一种微弱的、平淡的天体污迹的形式出现在肉眼中。猎户座星云在Messier目录中被命名为M42，它发光的气体和尘埃包围着炙热的年轻恒星。M42直径约40光年，位于一个巨大的星际分子云的边缘，距离我们只有1500光年，它和太阳一样位于银河系的同一螺旋臂内。包括灰色的蓝色反射星云NGC 1977，也被称为画面左侧的奔跑者星云，这个出生星云只代表了我们银河系附近丰富的恒星形成物质的一小部分。在这个被充分研究过的恒星摇篮里，天文学家还发现了许多似乎是婴儿太阳系的东西。
查看原文解释
Few cosmic vistas can excite the imagination like The Great Nebula in Orion. Visible as a faint, bland celestial smudge to the naked-eye, the nearest large star-forming region sprawls across this sharp colorful telescopic image. Designated M42 in the Messier Catalog, the Orion Nebula's glowing gas and dust surrounds hot, young stars. About 40 light-years across, M42 is at the edge of an immense interstellar molecular cloud only 1,500 light-years away that lies within the same spiral arm of our Milky Way galaxy as the Sun. Including dusty bluish reflection nebula NGC 1977, also known as the Running Man nebula at left in the frame, the natal nebulae represent only a small fraction of our galactic neighborhood's wealth of star-forming material. Within the well-studied stellar nursery, astronomers have also identified what appear to be numerous infant solar systems.
© R. Jay Gabany